Window sash



Feb. 13, 1934. s, WRAGH 1,946,601

WINDOW sAsH Filed June 17. 1932 i 164 14- E8 L WITNESSES n @0a/zwem Patented F eb. 13, 1934 lUNITED STATES WINDOW SASH Stephen Viragh,

wilkinsburg, Pa.

Application June 17, 1932. Serial No. 617,756

7 Claims.

This invention relates to sliding and revolving window sashes, and particularly to an improved form of sash of the type employing a glass-supporting frame which is rotatably mounted between a pair of supporting runners or slide members that are adapted to be run up and down in the grooves or slideways of an ordinary window frame.

The primary object of the invention is to provide a sash of this character in which the hinges are effectively concealed and which have inte locking parts arranged between the sash frame and the runners which are so constructed as to prevent the entrance of air or moisture therebetween or the warping or loosening of such parts.

A more particular object is to provide a sash embodying the aforementioned characteristics which comprises comparatively few parts, is simple and sturdyof construction, economical to manufacture, and lends itself to easy manipulation of the window.

These and other objects, as well as the various other novel features and advantages of the invention, will be apparent when the following detailed description is read in conjunction with the accompanying drawing, of which Fig. l is a perspective View of a window construction embodying the invention; Fig. 2 a fragmentary sectional view taken-through one side of the sash frame and one of the runner members, showing one form of interlocking parts and weather-stripping arrangement provided between these elements; Figs. 3, 4 and 5, views similar to Fig. 2 of several modied forms of interlocking parts 'and weather-stripping arrangements devised for use between the sash frame and runner members; Fig. 6 a perspective View of a section taken -from the center of one of the slide runners, showing the mounting of one of the pivotal hinge plates; Fig. '7 a horizontal section taken through one side of the sash frame and one runner member at the center of one of the hinges; Fig. 8 an exploded view of the pivot bolt assembly employed in the hinge; Fig. 9 a side view of one of the hinges before the hinge plates are drawn `together; and Figs. 10 and 11 fragmentary secltional` views showing two novel weather-strip .zmountings Referring in detail to the drawing, the nu- .meral 1 designates a common form of window -frame of the type in which sashes of the char- ;acter contemplated by this invention are used. This frame, which may be made in any suitable fashion, is provided with the usual grooves or runwaysz and 3 in which window sashes 4 and 5,. respectively, are mounted. These sashes cornprise principally a sash frame 6 in which a plate of glass 7 is suitably mounted and a pair of side runners or slide members 8. The latter Yare adapted to slide in the runways 2 and 3 and function as supports for the sash frame, being connected to the latter in the mid-portion thereof as indicated by the lower sash in Fig. 1 by pivot hinges 9.

In accordance with this invention, in the construction of the sashes the sides of the sash frame 6 adjacent the runner members 8 andthe adjacent faces of the runner members are rabbeted at l2 and 13, respectively, along their full lengths in the manner shown in one or the other of the Figs. 2, 3, 4 and 5. In these rabbets, which are all made with the same width and depth to simplify the construction, stop strips 11 are secured. These stop strips are made with a width the same as that of the rabbets and a thickness just twice the depth of the rabbets andare mounted on the opposite sides of the pivot hinges, one being connected to the sash frame on one side of the lhinge and the other to the runner on the other l side. Because of their thickness they completely ll the opposed rabbets and thus are adapted toengage the flanges 12a and 13a on the sash frame and runners thereby limiting the rotation of the sash frame to a movement of slightly less than 180 and at the same time form barriers which impairV the passage of air and moisture between the Vsash frame and runners when the sash frame is closed. Y

To more positively prevent the passage of air v or moisture between the sash frame 6 and runners 8, weather strips 14 and 15, such as shown in Figs. 2, 4 and 5, are 'attached to both thesash frame and runner members in the bottoms of the rabbets 12 and 13 and on the faces of the stops 11 respectively. These strips as illustrated have lengths which are the same and widths substantially the same as the stop strips 11, and are made of any suitable material, b ut preferably of a noncorrosive metal such as galvanized strip. To provide an eifective seal between them, folds 14a and 100 15a are formed on their inner edges and adapted to nest one within the other when the sash is closed, and to provide space for such folds the stop strips 11 have rabbets 16 cut in their inner V As will be appreciated,

together and prevent them from warping, and by ,Y reason of their inner overlapping edges being disposed in the centers of the faces of the runner members and sash frame they are effectively protected against injury. In addition, due to the hinge parts being rigid and the seal strips engaging each other at the edge of these plates. if the sash should warp when it is closed the strips will force it against the runners.

As stated hereinbefore, the sash frame 6 is connected to the runners 8 by hinges 9 which are mounted in the centers of the runners and frame. These hinges comprise principally a pair of hinge plates 17 and a pivot bolt 13. These Aplates are provided with the same width and thickness as.

the rabbets 12 and 13 whereby they are adapted to fit in the latter without further preparation of such parts for their reception, and with a sufcient length to suitably support the load carried by them. To properly balance the assembly the bolts 18 are extended through them in holes 19 which are so located as to place the pivots in the center of the sash frame and runners. To receive the ends of the bolts 18 holes 20 and 21 are drilled in the face of the runners and sash frame respectively.

'Io insure against the pivot bolts 18 becoming disassembled in service, a pair of diametrically opposed grooves 23 tapered outwardly at their inner ends are cut in the periphery of the bolt and extended to a point from the threaded end thereof which is located under the edge of the hinge plate adjacent the nut 24 employed to'hold the hinge plates together. Between the nut 24 and the adjacent hinge plate one or more lock washers 25 are mounted which are provided with diametrically opposed lugs 26 on the inner circumference and these adapted to fit snugly in the grooves 23 cut in the bolt.

The lugson washers 25 are preferably made of a length such that when nut 24 is screwed tightly in place they will be forced against the tapered bottoms of grooves 23 adjacent the hinge plate and deformed so as to wedge them tightly in the grooves whereby firmly securing them in such position. In addition to these a plain washer 36 is mounted on the head end of the bolt and an ordinary split spring lock washer 27 is mounted adjacent the nut. With suoli an arrangement no relative turning can take place between the bolt and the lugged washers, hence as the friction between the washers and the nut 24 is sufricient for such purpose as it is the nut is prevented from turning except with the bolt and washers. The advantage of this will be appreciated when it is considered that the bolt is continually subjected to turning forces when the sash is rotated.

To insure against leakage between the hinge plates, which are slightly curved as shown in Fig. 9 when made, they are drawn tightly together before they are mounted in the sash'. Thus, they are brought in surface-to-surface contact with the tension in them aiding in rmly holding them together. To facilitate their mounting they are turned at right angles to each other when drawn together and so attached to the sash frame 6 and runners 8 by screws 28 or other suitable means. To further impair the passage of air and moisture between the sash frame and runner members the ends 29 o f the hinge plates 17 are tapered as shown best in Fig. 6, and the ends of stop strips 11 and weather strips 14 and 15 accordingly tapered to form an overlapping joint, the taper being such as to not impair the turning of the sash frame.

Referring to Figs. 2, 3, 4 and 5, there are shown several forms of stop strip mountings which may be used in this construction, and as will be observed they are adapted to fit in rabbets in the sash frame and runner members which are uniform in cross-section throughout their length, they varying in each instance only in cross-section and indicate the different ways in which these parts may be made and assembled.

In Figs. l0 and 11 there are shown two forms of weather-strip mounting by which a more perfect seal is provided and by the use of which exposure of the strip edges is avoided.

As will be appreciated by those skilled in the art, this construction provides a very simple arrangement employing a relatively small number of parts which, in addition to being economical to manufacture and easy to assemble, provides a very efficient and effectively 4sealed window of this character' and one in which the sealing strips are effectively protected against injury.

According to the provisions of the patent statutes, I have explained the principle and -mode of operation of my invention, andhave illustrated and described what I now consider to represent its best embodiment. However, I desire to have it understood that, within the scope of the ap,- pended claims, the invention may be practiced otherwise than as specifically illustrated and de,- scribed.

I claim:

1. A window sash comprising a pair of slide runners uniformly rabbeted on their opposed faces throughout their entire length, a sash frame disposed between said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners with its f rabbets directly opposed to those in the runners, a pair of pivot hinges each comprising a pair of hinge plates and a pivot bolt holding said plates together connected between said frame and runners in the middle thereof on the opposite sides of said frame, said hinge plate having the same thickness and width as the rabbets cut in the sash frame and runners and mounted therein, and stop strips adapted to cooperate with the shoulders formed on the adjacent faces of said sash frame and runners by said rabbets mounted in the rabbets on opposite sides of said hinges one being attached to the sash frame and the other to the runner members on each side of the sash.

2. A Window sash comprising a pair of` slide runners uniformly rabbeted with an undercut inner edge on theirA ODDQSed faces along their entire length, a sash frame disposed between. said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners and with its rabbets directly Opposed to those in the runners, a pair of pivot hinges connected between said frame and runners in the middle thereof on the opposite side of the said frame, and stop strips adapted to tin the undercut edge of said rabbets mounted in the` rabbets on opposite sides of saidhinges, oneA of said strips being attached to the sash frame and one to the runner members.

3. A window sash comprising al pair of slide runners uniformly rabbeted on their opposed faces on one edge along their entire' length, a sash frame disposed between saidf runners, which is uniformly rabbeted the same as said runners along its sides adjacent the runners withi itsA rabbets directly opposed to those in; the runners, a

pair of pivot hinges each connected between said frame and runners in the middle. thereof on'. the oppositeV side of the' said frame, stopKA strips mounted in the rabbets on opposite sides of said hinges on each side of said frame one of such strips being attached to the sash frame and one to the runner members on opposite sides of the hinges, and weather-strips mounted in said rabbets and on said stop strips, said weather strips having folds on their edges which are adapted to overlap each other when the sash frame is closed.

4. A window sash comprising a pair of slide runners uniformly rabbeted on their opposed faces along their entire length, a sash frame disposed between said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners with its rabbets directly opposed to those in the runners, a pair of pivot hinges connected between said frame and runners in the middle thereof on the opposite sides of the said frame and stop strips having a width equal to that of the rabbets and a thickness equal to twice the depth of the rabbets mounted in the rabbets on opposite sides of said hinges, one of said strips being attached to the sash frame and one to the runner members on opposite sides of said hinges, and equipped with shoulder portions along one edge which are adapted to t in grooves in said rabbets.

5. A window sash comprising a pair of slide runners uniformly rabbeted on their opposed faces on one edge along their entire length, a sash frame disposed between said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners with its rabbets directly opposed to those in the runners, a pair of pivot hinges each comprising a pair of hinge plates and a pivot bolt holding said plates together connected between said frame and runners in the middle thereof on the opposite side of the said frame, said hinge plates being mounted in the opposed rabbets cut in the sash frame and runners, stop strips adapted to cooperate with the shoulders formed by said rabbets mounted in the rabbets on opposite sides of said hinges, one such strip being attached to the sash frame and one to the runner members on opposite sides of said frame, and weather-strips mounted in said rabbets and on said stop strips, said weather-strips having folds on their edges which interengage when the sash frame is closed and so mounted as to place said folds substantially in the center of the adjoining surfaces of said sash frame and runners, said surfaces being cut away for the reception of said folded edges of the weather-strips.

6. A window sash comprising a pair of slide runners uniformly rabbeted on their opposed faces on one edge along their entire length, a sash frame disposed between said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners with its rabbets directly opposed to those in the runners, a pair of pivot hinges each comprising a pair of hinge plates and a threaded nut secured pivot bolt holding said plates together, being connected between said frame and runners in the middle thereof on the opposite side of the said opposed frame, said hinge plates being of the same width and thickness as said rabbets and mounted therein, stop strips mounted in said sash frame and runner rabbets on each side of said frame, one o-f said stop strips being attached to the sash frame and one to the runner member on opposite sides of said hinges, and locking mea-ns for preventing said pivot bolt from being disconnected or displaced in service.

7. A window sash comprising a pair of slide runners uniformly rabbeted along one edge of their opposed faces over their entire length, a sash frame disposed between said runners, said frame being uniformly rabbeted the same as said runners along its sides adjacent the runners with its rabbets directly opposed to those in the runners, a pair of pivot hinges connected between said frame and runners in the middle thereof on the opposite sides of the said frame, stop strips of the same width and substantially twice the thickness of said rabbets mounted in the rabbets on opposite sides of said hinges, being connected on one side to the sash frame and on the other to the runner, and weather strips attached to said rabbets and said stop strips with the opposite edges of both concealed from the exterior of the sash and their inner edges folded to engage each other when the sash frame is closed.

STEPHEN VIRAGH. 

